• You can change the practice type or print the question and answer sheets in the control drawer.
• Set `Questions per subject` in the control drawer to choose how many questions each subject contributes.
• Use the `Difficulty balance` slider to control the mix of easy, medium and hard questions in the paper.
• Your chosen number of questions and difficulty balance are saved in the page address, so you can bookmark or share the exact paper, and they appear on the printouts.
• Press the `Start` button to begin a fresh attempt; questions stay hidden until you start.
• Select an answer for each question by clicking on the box in the answer sheet.
• Click an answer number in the answer sheet to jump to that question.
• Use the `Previous` and `Next` buttons or your keyboard arrows to move through the paper.
• Use the `Reset Answers` button above the answer sheet to clear all your answers and try the paper again.
• Check Answers unlocks after every question is answered and is available on every question; answers lock after scoring.
• Change the Seed in the control drawer to get a different selection of questions. The same seed always produces the same paper — bookmark the URL to revisit it.

This tool works best on a desktop or laptop.